Heterodyne
[电] 外差
🗣️ 情景例句
Do you know what I'm talking about?
知道我讲的是什么吗？
Just a minute and I'll see if there are any flights.
等一下，我来看看有没有班机。
What a relief it was when the boulders suddenly disappeared, giving way to a stretch of plain where the only obstacles were clumps of bushes.
突然大石块不见了，前面是一片平地，唯一的障碍只有一簇簇灌木丛。这使我们长长地松了口气。